• Sphere of colour
    • Gives sun a reddish glow due to emission of hydrogen spectral lines
  • Can only be seen during a total eclipse
  • Roughly 2000 km thick
  • 10,000 K
  • Spicules
    • Long thing fingers of luminous gas which appear like blades of a huge field of fiery grass
    • Rise to the top of the chromosphere and then sink back down
  • Contain plages
    • Bright regions around sunspots
    • Areas within chromosphere with higher temperature and density than their surroundings

Sun Atmosphere Astronomy